What is the major flaw of 125KHz technology?

Card reads are more likely to fail
Wrong. Try again...
The read range of 125KHz card readers if far shorter than other card reader technologies
Wrong. Try again...
It
is possible to create a device that will ‘power up’ a card from a
distance, then read the data that is being transmitted. From this copy
cards can be created
Yes. That's correct.
More power is needed to power up the card
Wrong. Try again...
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